Insecure me -advice

Hey ladies, so my boyfriend and I got in a pretty big argument 2 days ago because there's this girl that he has known for MONTHS now that I get jealous about and I went to her instagram and saw that every single picture of her in a bikini is liked by my boyfriend.

Mind you my boyfriend always complains about girls posting bikini pics bc he says its only for attention.

We had a huge fight about it and he basically said since she is his friend he won't stop liking the pics.

They are really good friends and I know her and I trust my boyfriend, but still it doesn't change the fact that he knows that I get jealous of her and he didn't consider that at all. She is just used to everyone adoring her because she is really pretty.

I know he can like anything and it doesnt mean anything but im talking about this specific case.

So we talked through it and we are good but I have this insecurity feeling that I had not had in so long. I am generally a very confident girl, and I think I'm attractive, but I'm not "hot" and this girl is a model (literally), so I feel really low. I don't feel pretty and I don't feel like showing my boyfriend my body now. All because of those stupid likes.

Which then I guess my confidence wasnt big at all.

What should I do? Like he thinks I am okay now and I just mentioned I was feeling insecure about myself but he doesn't get it. What can I say and what can I do to feel okay with myself again? I'm very sad.